Never again will I take any Vodacom product

Vodacom telesales person sold me a Vodafone tablet, and she made it clear that the call was being recorded. After the sale took place there was three extra products she sold me and after turning it down she made it clear that it was a once off deduction for RESCUEBOX EM-***-2,SAFETY EM-***-3, HOTSPOTTEREM-***-4. R140 recurring deduction has been going of my account since getting the tablet. Now I want to cancel the contract for the tablet and would like to receive all premiums paid to Vodacom back in my account. In fact every single device or product I have with Vodacom will be cancelled as soon as possible.